package com.atguigu.springcloud;

import com.netflix.hystrix.contrib.metrics.eventstream.HystrixMetricsStreamServlet;
import org.springframework.boot.SpringApplication;
import org.springframework.boot.actuate.endpoint.invoke.convert.ConversionServiceParameterValueMapper;
import org.springframework.boot.autoconfigure.SpringBootApplication;
import org.springframework.boot.web.servlet.ServletRegistrationBean;
import org.springframework.cloud.client.circuitbreaker.EnableCircuitBreaker;
import org.springframework.cloud.client.discovery.EnableDiscoveryClient;
import org.springframework.context.annotation.Bean;

/**
 * @USER: dayu Administrator
 * @DATE: 2020/3/26
 * @DESCRIPTION: @EnableCircuitBreaker激活降级服务
 */
@SpringBootApplication
@EnableDiscoveryClient
@EnableCircuitBreaker
public class PaymentHystrixMain8001 {
    public static void main(String[] args) {
            SpringApplication.run(PaymentHystrixMain8001.class,args);
    }


    /**
     *此配置是为了服务监控而配置，与服务容错本身无关， springcloud 升级后的坑
     *ServletRegistrationBean因为springboot的默认路径不是"/hystrix. stream"，
     *只要在自己的项目里配置上:下面的servlet就可以了
     */
    @Bean
    public ServletRegistrationBean getServlet(){
        HystrixMetricsStreamServlet hystrixMetricsStreamServlet = new HystrixMetricsStreamServlet();
        ServletRegistrationBean servletRegistrationBean = new ServletRegistrationBean(hystrixMetricsStreamServlet);
        servletRegistrationBean.setLoadOnStartup(1);
        servletRegistrationBean.addUrlMappings("/hystrix.stream");
        servletRegistrationBean.setName("HystrixMetricsStreamServlet");
        return servletRegistrationBean;
    }
}
